[FIX] survey: avoid including skipped (empty) rows in results
[FIX] survey: avoid including skipped (empty) rows in results

This commit avoids the showing of '0.0' for skipped numerical_box
questions and empty rows for other skipped simple entry (i.e. not
multiple choice questions) in the survey results "All Data" tab.

Triggered by task ID 2061937 (improve scoring in surveys)
PR #44205
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo